Essays Upon
Essays Upon Heredity and Kindred Biological Problems Authorised Translation
作者：Weismann, August, 1834-1914; Poulton, Edward Bagnall, Sir, 1856-1943 [Editor]; Schönland, S. (Selmar), 1860- [Editor]; Shipley, A. E. (Arthur Everett), Sir, 1861-1927 [Editor]
体例：段 章数：44
字数：885,637 来源：Project Gutenberg
章节目录
共 44 段- To put it briefly, I consider that duration of life is reall
- In answering the question as to the means by which the lengt
- Perhaps you may answer, that there is an established relatio
- _Acanthia lectularia._ No observations have been made upon t
- The fertilized female which survives the winter, commences t
- Fission is quite symmetrical in _Amoebae_, so that it is imp
- We thus find that the reproduction of multicellular organism
- Darwin long ago called attention to the fact that the degene
- Now it cannot be denied that all predispositions may be impr
- Upon this subject Pflüger states—‘I have made myself accurat
- First, the question arises as to how death could have been t
- Let us now consider the manner in which Götte has endeavoure
- At this point it is advisable to return once more to the der
- This does not exclude the possibility that in spite of an as
- Leuckart finds such a great resemblance between the newly bo
- Nothing can arise in an organism unless the predisposition t
- Nägeli’s hypothesis appears to be self-contradictory; for, a
- Hence, according to Nägeli, the different stages of ontogeny
- The phyletic origin of germ-cells obviously coincides with t
- For if the specific molecular structure of a cell-body is ca
- In former times it could only be regarded as of purely phyle
- This explanation of the necessity for fertilization does not
- Similarly, the germ-cells of female _Daphnidae_, which at fi
- Van Beneden, even in his last work, considers these bodies t
- These are indeed only convictions, not real proofs; for we a
- But now the question arises,—How can we explain the presence
- A large butterfly (_Kallima paralecta_), found in the East I
- In a certain sense, this would be the last and most extreme
- If the idioplasm really possessed the power of spontaneous v
- After Darwin, several investigators, such as Kerner, Delpino
- Ever since I began to doubt the transmission of acquired cha
- The author has attempted to work out the details of his theo
- This was the state of the subject at the time when I first m
- But perhaps the solution of this problem is not so difficult
- But there are yet other observations which, if correct, must
- But if it be asked whether the postponement of the ‘reducing
- C. S. Minot, ‘Account, etc.’ Proceedings Boston Soc. Nat. Hi
- There is nevertheless a difference between these two cases i
- The opening and closing of the leaves of _Mimosa pudica_ als
- Many instances of a precisely similar kind have been long kn
- To this class belong the tailless cats which were shown at l
- If we apply this argument to the supposed transmission of mu
- If, as I believe, these phenomena can be explained without t
- Rabbit, polar bodies of, 339.